0016-3813 0016-3813 S0016-38132021000600660 10.24875/gmm.21000393 Perú Perú 00 12 2021 00 12 2021 157 6 660 660 1 2021 88 1 1 15-27 2 2020 46 07 07 781-4 3 2020 41 4S1 4S1 121